Manifolding mechanism for typewriting machines



May 18 1926:.

M. O. ANTHONY MANIFOLDING MECHANISM FOR TYPEWRITING MACHINES Filed April 6 1925 2 Sheets-Sheet 1 RNEY A ATTO M. O. ANTHONY MANIFOLDING MECHANISM FOR TYPEWRITING MACHINES 5 2 9 1 6 l i F n. A d 8 l 1 F Patented May 18, 192$,

u it i FF MARC! 0. ANTHONY, 03E PHILADELPHIA, PENETSYLVANIA.

MALWIFOLZDIEG; MEGHANRM F03, QYPEWRITING MAGHINEs.

Application filed April 6, 1925. serial No. 521,198.

My invention relates to equipment for prevent, undue trictionai engagement with typewriting machines, preferably those of the superposed plies of thework-sheet de- 55 the visible type, for eflecting the production live-red by the platen and alternating with of multiple or duplicate copies of the origisaid ribbons.-

5 nal writing, without the necessity of e1n- A further object of my invention is to proploying independent, removably-positioned, vide means for imparting a feed movement carbon sheets. My present invention reto said ribbons during the retractive move 60 la'tes more particularly to a multiple ribbon ment of the carriage. attachment supported by and movable with A further object of m invention is to prothe carriage, with the multiple ribbons disvide tension means for t e respective ribbons posed in proper relative position with reso that while they are relatively free to move spect to the usual ribbon of the typewriting for a feeding operation upon retraction of 6 machine whereby I'am enabled to make duthe carriage, they will be maintained at all plicate impressions upon a plurality of times in a substantiaily taut condition so as worksheets passingaround and fed by the to receive clean blows from the respective platen andproperly located with respect to type-bars and produce the desired impresthe other parts of the typewriting machine, sions upon the plies of "the work-sheet un- (usually special form sheets, bills, and the derlying'the same; like), from the blow str iclr by the type-bars A further object oi my invention is to 20 upon the ribbon usually employed and locatprovide a separating guide and support for ed in the normal position with respect to the multiple ribbons disposed in position for said platen, I engagement by the type-bars.

The main object of my 1n vention 1s to pro- A :turther ob ect of my invention is to emvide a simple form of supporting frame for ploy series oi wires of relatively fine gage 25 the multiple group of copying or duplicatunderlying the ribbons and between the plies ing ribbons, which frame may be self-conof the work-sheet, which wires may be emtained and may be readily attached to and ployedto split the folds of said work-sheet 0 detached from the typewriting machine A further-object of my invention is-to' without otherwise affecting the use of the provide means for partially weakening the, 530 machine in any way, and without changing folds of the tan-folded work-sheet so that or affecting in any way the normal and usual said folds may be readily slit by the wires operation of the typewriting machine underlying the multiple ribbonsu whether my attachment is employed or not. And a stiil further object of my invention If desired, the multiple ribbon carrier may is to provide the typewriting machine with y 5 be built into and form part of the usual trava paper guide-apron carrying means for cling carriage. slit-ting a continuous fan-folded paper web or A further object of my invention is to pro- Work-sheet, so that the plicsmalring ui o'snch vide a multiple set of ribbons which may be fan-folded work-sheet may be proper'y sep- Wound upon and unwound -from independ arated into individual sheets for introducnt s ools carried at opposite ends'of the detion between the superposed ribbons in order tachable frame; each spool receivi'njgagroup that they may occupy the proper relative poof superposed ribbons which are unjwonhd sition to receive the duplicate impressions from one spool and wound up on-the other from o d r oils by the action of the type a (and vice versa) yrwhich ribbons are indebars striking the platen. pendently guided so as to move past the These and other features of my invention printing point, and between which the snare more :tully described hereinafter; referperposed plies of a work-sheet, carrying ence being had to the accompanying draw- 1 forms, duplicate bills, or the like; normally ings, in which presented to the paper guide-apron of the Figure 1, is a plan view with certain parts typewriting machine in fan-folded condibroken away, of typewriting machine oiv tion, may be passed around the platen. The the so-called visible type, showing details several ribbons are preferably slightly 'of construction forming the subject of my 9 spaced apart, so as to reduce, it not entirely present invention,

Fig. 2, is a side elevation of a portion of the typewriting machine, showing an end view of the movable carriage and the multiple ribbon supporting frame which I employ mounted thereon; such view showing also i the paper guide-apron and one formv of slitting means for the continuous. fan-folded work-sheet within the scope of my invention.

Fig. 4-.- w ig. 5, is a diagrammatic plan view of the guide and .tensioning means for the superposed manifolding rlbbons.

' Fig. 6, is a plan view of 8. art of the man 'ifoldmg ribbon-supporting rame; illust rarting a modified form of driving means $61" the manifold-ribbon-carrying spools.

Fi 7, is a sectional elevation showing the relation of the manifoldin ribbons with respect to the superposed pies of the works ieet passing between the same and'the usual ribbon of the typewriting machine; showing also the separating or spacing means for the plies of the work-sheet.

Fig. 8, is a detached perspective view of a portion of the meansemployed for spacing the plies of the work-sheet adjacent to the manifolding ribbons and one of the supports therefor. V

Fig. 9, is an enlarged view, partly in section of a portion of the spring actuated drum forming part of the means for effecting feed movement of the manifolding ribbons.

F i 10, is a sectional View on the line X- Fig. 9.

Fig. 11, is a diagrammatic View of one of the slitting members carried by the paper guide-apron for severing the plies of the continuous fan-folded work-sheet, and

' Fi 12 is a diagrammatic view illustrating't e position of the slitting members with respect to the plies of the fan-folded worksheet; the latter beingshown in section.

' As hereinbefore stated, the main object of my invention is to provide simple and adequate means for effecting multiple copying by the use of duplicating ribbons associated with a typewriting machine; the mechanism forming the subject of my invention being applicable to' the so-called visible typewriting machines of the Remington or Underwood types.

In the drawings, the carriage of the machine is indicated generally at 1, and is the usual carriage found in the machines of commerce of the type mentioned, and operating in the usual manner. Upon this carriage a frame 2 is mounted, which may comprlse a front bar 2, underlying the front rail 1* of the carriage and secured thereto by set screws 3, with shelf or table portions 2* and 2, at opposite ends of said bar 2; and a bar 2, at the rear, disposed adjacent to the usual laten A which is mounted in the carriage 1 1n theusual manner; such bar 2 being detachably mounted on the table or shelf portions 2" and 2, of said frame 2, and secured thereto by means of set screws 3.

Each of the table portions 2* and 2 is rovided with a vertical post or stem 5 an 5, upon which ribbon spools 6 and 6 are mounted for rotation; each of such spools carrying a plurality of superposed ribbons indicated a t-'7, and being arranged for operative association with a worm wheel whereby they may be driven to impart feed movements to said superposed ribbons, as herein.- after described.

Suitably journaled in bearings 8 carried -by-the bar 2, is a'shaft 9 carrying worms 10 and 10, each arranged to mesh with a worm wheel mounted on the posts '5 and 5 and associated with the ribbon spools 6 and 6. In one arrangement of my improved construction I propose to use a shiftable worm wheel indicated in Fig. 1, at 11.

When this worm wheel is mounted on the post 5, as indicated in Fig. 1, and motion is imparted to the shaft 9, the worm 10, in mesh with said"wo rm wheel,'will cause the latter with the ribbon spool 6 to be moved in the direction of the arrow :2; rotating the spool 6 in the same direction and winding the superposed manifolding ribbons. 7 thereon. l/Vhen the ribbon spool 6 is substantially filled and itis desired to move the manifoldingribbons in the opposite direction, theworm wheel 11 may be.

Ibo

manually shifted to the post 5 for meshv 10 is driven by a spring actuated drum at certain intervals during the operation of the typewriting machine, through the medium of suitable gearing, in the following manner:

Secured to the movable carriage 1, of the typewriting machine, preferably at the right hand side of the same, is a supporting bracket 12, having end projections 12 and 12, in which a shaft 13 is journaled;

' said shaft being mounted for rotation with meshes with a helical a spring actuated drum 14. Carried by'the shaft 13 and disposed atone end of this drum is a helical gear wheel 15, which car wheel 16, carriedby the shaft .9. C utching mechanism is disposed within a shell 17 at the end of the drum, which may comprise a notched disk 18, fixed to the hub of the helical gear wheel 1'5,-with rollers 18', disposed in said notches and adapted to impinge upon the inner surface of the shell 17, fixed to the drum 14 when the latter is turned in one direction.

Externally, the drum 14 carries a cord 20, having one end fixed to the drum at 20,

while the other end may be connected to the frame of the machine at 20*. Within the hollow space of the drum, a helical spring 21 is disposed; one end being fixed to the bracket projection 12. at 21, while the opposite end is connected to the drum at 21".' The relation of these parts is such that when the carriage 1, is moving to the left during the normal period of writing, the cord is wound upon the drum; the latter being turned by the, spring as it extends, and there being no motion of the helical gearing. "When, in the ordinary practice of operating the machine, the carriage is restored to the right end position tocommence a line of fresh writlng, rotation of the drum will be effected by the cord 20, and the clutching. means will be brought ina to action coupling the drum with the shaft 13, carrying the helical gear '15, which gear will be turned and by it the helical gear 16, to rotate the shaft 9, which in turn moves a ribbon spool through the medium of one of the worms 10 (or 10), meshing with the worm wheel 11. At the same time the spring 21 will be wound up; storing its tension. To avoid all back lash, the gear wheel 15 is preferably engaged by a flat spring 22.

The shaft 9, as shown in Fig. 1, of the drawings and described above, carries two worms, 10 and 10 in proper relative position with respect to the axis of rotation of theribbon-carrying spools 6 and 6 By having right and left hand worms, it will be possible, as described, to employ a single worm wheel Which, after the ribbons have been wound upon one spool, may be shifted with respect to the other worm so as to efiect winding of the ribbons on the other spool; This is an obvious method of "taking care of this condition, and is efiective for all purposes.

In lieu of this arrangement, however, each spool may be equipped with a worm wheel, diagrammatically indicated in Fig. 6, at 11 and in mesh with the respective worms 10 and 10 and the shaft 9 may carry a clutch sleeve 25, suitably splined thereto, which shaft, in turn passes through sleeves 26 and 26 carrying the respective worms; such sleeves 26 and 26 beingdisposed in suitable bearings 8. When it is desired to operate the spool 6 at the right hand side of Worm 10 willeifect. rotation of the spool 6*, at the left hand side of the frame.

The ribbons 7, wound upon the spools; being iled or superposed upon each other, indivi ually pass from the spool 6 around guide pins 31, thence over rollers 32, thence across the face of the platen to other rollers 32, and around other guide pins'31, to the opposite spool 6*. These guide pins and rollers are clearly shown in Figs. 1 and 6, and while the rollers 32 (or 32) are free to move in one direction, as indicated by the arrows, they are held against movement in the opposite direction; such arrangement serving to maintain the ribbons in a taut condition during the writing operation.

Referriiig to Fig. 1, and to the diagrammatic views, Fig. 5, showing the rollers 32 and 32 disposed adjacent to the ribbon spools and over whichthe ribbons pass to and from said spools in order that they may be directed across the face of the platen in printing position with relation thereto, it will be notedthat the pins 31 and 31 are so positioned .with respect to said rollers as to impart a relatively sharp bend to the ribbons and assist in providing the necessary friction in order that the ribbons may be taut at all times.

These rollers haveon their lower ends teeth 33 and 33 cooperating with spring controlled pins 34, as shown in Figs. 4 and 4, so that they may only turn in one direction; the rollers 32, in the direction of the thence over the frictionroller 32 will be" retarded at such point, so that the operation of the spool 6 to wind the ribbons will draw the same across the printing point in a tautcondition. Vihen such ribbons are being wound on the spool 6 the conditions are exactly. reversed.

&

These rollers 32 and 32 may be recessed for the rece tion of friction sleeves 35, of rubber or 0t er suitable material, and are preferablymounted on pins 36, the lower ends of which enter recesses formed in the shelf portions 2 and 2, while their upper ends enter apertures formed in plates 37 and 37 overlying the same; which lates carry the guide pins 31, and are hel d down by the bar 2 In addition, the plates 37 and 37 carry guide hooks 38 and 38*, under which the manifolding ribbons pass just before reaching the rollers 32 and 32 In the present instance, I have onlyindi cated a pair of du licating ribbons for the .purpose of reprot ucing impressions upon two plies 0f the work-sheet; the latter being presented in the form of a triple fanfold, the top ply being arranged to receive impressions from the usual ribbon B, carried by the typewriting machine, while the second and third plies are adapted to receive impressions from the duplicating ribbons.

In order that, the duplicate sheets (if the fan-folded section may be presenie' in proper condition With respect to, the duplicating ribbons, the folds of the same must be out and for this purpose I may employ wire slitting members 40, of substantially the character illustrated in Fig.1, and in the diagrammatic view Fig. 11. These slitting members are of substantially the same character as those shown in-,1ny companion application filed March 20, 1925, Serial No. 17,072, and may comprise runs of wire arranged in the special form indicated in Fig. 11, including aloop or eye 40*, an upward run 40 diagonally disposed with respect to said eye and extending toward the left to a curved portion 40, thence downwardly, still to the left, in a diagonal direction at 40, to a curve 40, and thence horizontally to the rightat 40, to a curved end 40 with a return portion 40', parallel to the run 40, such return portion being rebent at 40, into substantial contact with the portion 40, and extending at 40 diagonally toward the run 40?, and having a rebent portion 40" for contact therewith. This slitting member is preferably made of wire circular in cross section, and the contacting portions referred to are preferably secured together by a suitable soldering or brazing operation.

A paper guide-apron 45, over which the continuous fan-folded work-sheet passes, is clearly indicated in Figs. 1 and 2, and this may have guide-posts 46, for positioning the paper laterally; such posts having reduced ends 46, adapted to pass through slots 47 in said apron whereby such osts may be laterally adjustable; being held in their adjusted sitions by nuts 47*, applied to the reducedznd threaded ends 46 of the same.

The slitting members may be secured to the apron 45, by means of posts 50, having threaded portions 50, passing through the eyes of the same, into slots 51, formed in t e plate, whereby lateral adjustment of said posts and consequently the position of the slitting members with respect to the folds of the fan-folded work-sheets is provided for. The opposite end of the slitting member provided with the slot between the runs +1.0 and 40", is guided by the oppositely disposed posts 50, which are of the same character as those passing through the eyes 40. These slitting members are placed so that the diagonal portions 40* and 40 are arranged to engage the folded edges of the fan-foided worksheet, and as the latter is fed forward during the operation of the typewritiiig machine, it will be automaticallyv separated into independent plies. Provision is made for the support of a number of slitting elements, so that continuous fanfolded work-sheets of two, three, four or more plies may be taken care of.

bars support-ed by a cross-bar 56 mounted on the carriage and forming'part of the usual equipment. This uide-apron is'supported in the position illustrated in Fig. 2,

The paper guide-apron is hinged at 55 to.

by means of spring fingers 57, having seats 57 engaging the rounded ends 55 of the bars 55*.

The superposed plies of the work-sheet after the folds of the same have been separated by the slitters 40, are fed around the platen when the latter is turned during operation of the machine operated in the usual manner, and upon the type-bars striking the usual ribbon when the keys are depressed, duplication of the written matter will be effected upon the superposed plies of said work-sheet by the manifolding ribbons 7 disposed in proper relative position with respect to .the usual ribbon of the machine.

In order that the plies of the work-sheet may be separated so as to avoid undue frictional contactwith the ribbons tending to displace the same, I preferably provide separating wires 60, which extend across the machine in front ofthe laten and are disposed below the manifoldlng ribbons. These wires are carried by arms 61, pivotally mounted at 62, to the shelf orv table portions 2 and 2, and these arms are supported at their ends nearest the platen by stops 61 The ribbons are prevented from rising by guide books 38 and 38 depending from the plates 37 and 37 overlying the rollers 32 and 32, under which guide hooks the ribbons pass to said rollers. The wires have their ends fastened in diagonal slots 63 formed in the ends of the arms 61, as shown in Fig. 7, and they may be retained in place b brazing or welding, as may be desired. Tl iese wires are preferably disposed in the function is to change the direction of movement of the fan-folded work-sheet in its passage to the platen; such sheet passing first under the roll 65, then over the roll 66, and

then under the roll 67. These changes in the direction of movement of the fan-folded work-sheet tend to weaken and break down the folded edges of the same which have been previously perforated in the preparation of such fan-folded work-sheet, so that when such. folds are presentedto the wires 60, in such partially weakened condition, the latter can complete the separation of the plies; the folds ofi'erin little resistance to the splitting action of the Wires.

In the operation of the means for imparting feed movements to the superposed manil'olding ribbons, illustrated in Fig. 6, it is manifest, of course, that while one of the spools is being positively driven the other must be released to permit the ribbons to unwind from the same. Under usual conditions the non-driven spool with its associated worm wheel would be locked by the worm, hence it is-necessary to provide means whereby the non-driven spool can be free to rotate and permit the llbbOIlS to unwind from the same. For this purpose I may provide engaging I and disengaging means between the worm wheels and spools, which may comprise a circular rack carried by one of these members, to be engaged by a spring pin carried by the other member so as to permit this movement; the relation of the parts being such that while either spool may be driven in one direction by its worm wheel, it will be free to turn in the opposite direction inde endently of the worm wheel. In lieu of this, the worms and worm wheels may be replaced by helical gearing.

The continuous fan-folded work-sh et, which may contain bill or other forms, is fed to the platen in the manner indicated in Fig. 2, and the writing is effected thereon in the manner common to typewriting' machines. As each form is brought into position for the first line of fresh matter, the

previously filled out form is to be removed from the continuous superposed sheets. To facilitate such removal, the rear bar of the frame 2, maybe provided with a plate'69, having a cutting edge 69, against which the superposed sheets may be held and torn ofi by a quick movement; all of the plies bein severed at one operation.

ile I have referred to ribbons as the means for efiecting the duplication of the type impressions, upon underlying sheets of paper in superposed relation, the ribbons which I employ are preferably of thin paper, coated with carbon on the surface for contact with the sheets to be duplicated. The paper of which these ribbons are made is preferably of a very tough character, that will stand the feed movements between the spools without stretch or damage thereto until the carbon surface has been used up.

I claim:

1. The combination, in a typewriting machine, of a pair of supplemental spools, a plurality of superposed duplicating ribbons carried by said spools, guidin means for said ribbons adjacent each spoo said guiding means including rollers movable in one direction only under the nfluence of the ribbon when moving in one dlrectlon, and

means for operating said supplemental spools.

2. The combination, in a typewriting machine, of a pair of supplemental spools, a

worm wheel for operative association with said spools, a worm meshing with said .worln wheel, a plurality of superposed duplicating ribbons carried by said spools, guiding means for said ribbons ad'acent each spool, said guiding means inclu in rollers movable in one direction under the influence of the moving ribbons, and means for operating said worm to move said supplemental spools.

3. The combination, with the movable carriage of a typewriting machine, of a frame supported thereby and.movable therewith, a pair of supplemental spools journaled on said frame, a plurality of duplicating ribbons carried by said spools, guiding means for said ribbons; said guiding means including rollers movable in one direction under the influence of the moving ribbon and a typewriting machine, of a support, a pair of supplemental ribbonspools carried by said support, said spools supporting a lurality of superposed ribbons. a worm w eel for operative association with said spools, a worm for engagement with said worm wheel, a shaft carrying said worm, a spring roller operatively connected to the parriage, gear ing connecting said spring roller with the worm shaft, said spring roller bein wound when the carriage moves in one irection during the writing operation to store up energy in the spring, and turning in the opposite direction under the influence of the spring when the carriage is retracted; the latter movement of said spring roller operating the caring between the same and the worm-sha t whereby said worm-shaft may be turned to move one of the spools and wind the SIfiBI'POSed ribbons thereon.

5. e combination, with the carriage of a typewriting machine, of a supplemental support, a pair of ribbon spools carried by said supfport; said spools supporting a plurality o superposed ribbons, a worm wheel for operative association'with said spools, a

worm for engagement with said worm wheel. a shaft carrying said worm, a spring roller mounted on the carriage, gearing connecting said spring roller with the worm-shaft; said spring roller being turned in one direction when the carriage moves during the-writing operation byenergy in the spring stored during movement of carriage to the right, and turning in the opposite direction by the cord which stores energy in the spring when the carriage is retracted; the latter movement of said spring roller operating the gearing between the same and the wormshaft whereby the said worm-shaft may be turned to move one of the spools and wind the superposed ribbons thereon.

6. The combination, in a typewriting gnachine, of a series of superposed du flicating ribbons disposed in printing relation with respect to the platen, spools for said ribbons upon which they are wound in their superposed relation, and guiding means for the individual ribbons to and from the spools including friction rolls which may turn when the ribbons are moving in one direction and are normally inactive when the ribbons are moving in the op osite direction for restraining movement o the ribbons in order that they may be maintained in taut position at the printing point.

7. The combination, in a typewriting machine, of a series of superposed duplicating ribbons disposed in printing relation with respect to the. platen, spools for said ribbonsupon which they are wound in their super-' machine, the combiduplicating ribbons,

v spools upon which said ribbons are wound in superposed position, a series of friction rollers over which the individual ribbons are led, and pins disposed in fixed position with respect to said rollers around which the ribbons may pass whereby a bend is imparted to said ribbons to retard movement of the same in one direction; said friction rollers being held against movement when said ribbons are pulled across the face of the same in one direction.

9. In a typewriting machine, the combination of a series of duplicating ribbons, a pair of spools upon which said ribbons are wound in superposed position; said ribbons extendingfbetween said spools in printing relation with respect to the platen, a series of friction rollers over which the individual ribbons are led, and pins disposed in fixed position with respect to said rollers around which the ribbons may pass whereby a bend is imparted to said ribbons to retard movement of the-same in one direction; the friction rolls adjacent the spool from which the ribbons are unwinding being held against movement when said ribbons are pulled across the face of the same during such unwinding operation.

10. The combination, in a typewriting ma chine, of a series of duplicating ribbons, a pair of s pools around which said ribbons are wound in superposed relation, a series of guide rollers disposed adjacent to each of said spools, a pin disposed adjacent to each of said guide rollers whereby a bend may be imparted to the ribbons, and means for holding each set of rollers against movement in one direction; the ribbons when moving in one direction causing one set of said rollers to turn and pulling across the face of the other set.

11. The combination in a typewriting machine, of a series of duplicating ribbons, a pair of spools aroundwhich said ribbons are wound in superposed relation and extending across the platen in printing relation, a series of guide rollers disposed adjacent to each of said spools, a pin arranged adjacent to each of said guide rollers whereby bends may be imparted to the individual ribbons, and means for holding each set of rollers against movement in one direction comprising teeth on said rollers and spring pawls engaging the same; the ribbons when moving in one direction causing one set of said rollers to turn and pulling across the face of the other set.

12. The combination, in a typewriting machine, of a platen, means for moving worksheets in superposed relation around the platen, a series of manifolding ribbons interleaved with said superposed work-sheets, and a series of wires adjacent to the manifolding ribbons for spacing the plies of the work-sheets.

13. The combination, in a typewriting machine, of a platen, means for moving work sheets in superposed relation around the same, a series of superposed manifolding ribbons interleaved with said work-sheets and extending across the face of the platen longitudinally of the same, spools for said ribbons upon which they are wound in superposed relation, means for moving either of said spools to wind up said ribbons thereon, and spring motor means operative when the carriage is retracted for actuating said means to effect said winding movement of the spools.

. same, a series of superposed manifolding ribbons interleaved with said work sheets and extending across the face of the platen, a pair of spools upon which said manifolding ribbons are wound in superposed relation, means for imparting movement to said spools in different directions alternately to wind up said superposed ribbons alternately upon said spools, and spring motor means operative when the carriage'is retracted to commence the printing operation for actuating said means to effect said winding movement of either spool. i

15. The combination, with thelcarriage .of a typewriting machine, of supplemental ribbon-carrying spools mounted thereon, a plurality of manifolding ribbons in superposed relation mounted on said spools,.means for moving the plies of a work-sheet in interleaved relation with respect to said ribbons, means for effecting movement of the ribbon spools by movement of the carriage, a series of wires extending across the platen adjacent to the manifolding ribbons for spacing the plies. of the worksheet, and movable supports for said wires.

16. The combination, with the carriage of a typewriting machine, of supplemental ribbon-carrying spools mounted thereon, a plurality of manifolding ribbons in superposed relation mounted on said spools, means for moving the plies of a work-sheet in interleaved relation with respect to said ribbons, means for effecting movement of the ribbon spools by movement of the carriage, a series of wires extending across the platen adjacent to the manifolding' ribbons for spacing the plies of the work-sheet, and a pa1r of hinged supports for said wires.

17. The combination, with a typewriting machine ha'vinga platen and means for feeding a continuous fan-folded work-sheet to said platen, of a pair of supplemental spools,

a plurality of superposed manifolding ribbons carried by-said spools, and a series of fine wires extending lengthwise of the platen below said ribbons and serving to slit the folds of said work-sheet in order to present the latter in separated plies to the manifolding ribbons; said wires serving also to space the plies of the work-sheet with respect to said ribbons.

18. The comblnatlon, in a typewriting machine, of a platen, means for moving a plurality of work-sheets in superposed relation around the same, a series of manifolding ribbons interleaved with said superposed work-sheets, a pair of spools for said ribbons, and sets of guide rollers adjacent each ribbonspool, each set of rollers being arranged to turn when the ribbons are being wound upon the spool adjacent thereto, and held against turning movement when the ribbons are unwound from the spool adjacent thereto.

19. The combination, in a typewriting machine, ofa platen, means for moving worksheets in superposed relation around the same, a series of manifolding ribbons interleaved with said superposed work-sheets, a pair of spools for said ribbons, sets of guide rollers adjacent each ribbon spool, each set of rollers being arranged to turn when the ribbons are being wound upon the spool adjacent thereto, -and held against turning movement when the ribbons are unwound from the spool adjacent thereto; each of i said rollers ,havlng toothed ends, and springcontrolled pins engaging said teeth.

20. The combination, with the platen of a typewriting machine, ofa guide-apron disposed at the rear of said platen and extending diagonally above the same and over which a continuous fan-folded work-sheet may be fed to said platen, and slitting members for the folds of said work-sheet detachably supported by said guide-apron.

21. The combination, with the platen of a typewriting machine, of a guide-apron, disposedxat the rear of said platen and extending diagonally above the same and: over which a continuous fan-folded worksheet may be fed to said platen, and adjustable slitting members for the folds of said Worksheet detachably supported by said guideapron.

22. The combination, with a typewriting machine, of a platen, a guide-apron dis-' posed rearwardly of said platen over which a continuous fan-folded work-sheet may be directed to said platen, and a series of rollers disposed in substantial alignment, with one surface in the same plane, carried by said guide-apron around which the fanfolded sheet may be passed in two directions whereby fiexure of the same in opposite directions is effected to weaken the folded edges of the same.

23. The combination, with a typewriting machine, of a carriage, a pair of supplemental ribbon spools carried by the same, a series of ribbons in superposed relation wound on said spools, a worm wheel in operative relation each spool, a worm in operative relation with each worm wheel, a driven shaft, sleeves mounted on said shaft and supporting said worms, and a clutching sleeve ongitudinally movable on the she for operative engagement with either of said worm-carrying sleeves.

24. The combination, in a typewriting- --machine, of a series of superposed duplisuperposed relation, and guiding means for the individual ribbons to and from the spools including friction rolls normally inactive under one condition for restraining movement of the ribbons in order that they may be maintained in' taut position at the printing point and pins adjacent said spools for abruptly changing the direction of movement of said ribbons. I

25. The combination, in a typewriting machine, of a series of superposed dupliccating ribbons disposed in printing relation with respect to the platen, spools for said ribbons upon which they are wound in superposed relation, and guiding means for the individual ribbons to and from the spools including sets 'of friction rolls adjacent each spool for restraining movement of the ribbons as they are unwound from a spool in order that they may be maintained in taut condition at the printing point and pins adjacent said spools for abruptly changing the direction of movement of said ribbons.

26. The combination, in a typewriting machine, of a platen, means for moving work-sheets in superposed relation aroun the same, a series of superposed manifolding ribbons interleaved wlth said work-sheets and extending across the face of the platen longitudinally of the same, spools for'said ribbons upon which they are wound in superposed relation, means for moving either of said spools to wind said ribbons thereon, spring motor means operative when the carriage is retracted for actuating said means to effect said winding movement of either spools, and guiding means for the ribbons to and from the spools effective to restrain unwinding movement of said ribbons.

27. The combination, in a typewriting machine, of a platen, means for moving work-sheets in superposed relation around the same, a series of superposed manifolding ribbons interleaved with said work-sheets ande'xtending across the face of the platen, a pair of spools upon which said manifoldin'g ribbons are wound in superposed relation, means for imparting movement to said spools in different directions alternately to Wind said ribbons alternately upon said spools, spring motor means operative when the carriage is retracted to commence the printing operation for actuating said means to effect said winding movement of the spools and guiding means for the ribbons to and from the spools eflfective to restrain unwinding movement of said ribbons; said means including friction rolls and pins adjacent said .friction rolls for efiecting an abrupt change in the direction of movement of said ribbons.

In witness whereof I have signed this specification.

MARC O. ANTHONY 

